Insulated handle.



No. 798,062. PATENTED AUG. 29, 1905.

A. B. HOBSON & J. G. BROWN.

INSULATED HANDLE. APPLIGAIION FILED JUNE 28,1904.

UJiZweses I fwvemors 'and strongly secured thereto.

IU'NHE STATES PATENT orrroa.

ARTHUR E. HOBSON AND ,JOHN G. BROWVN, OF MERIDEN, CONNECTICUT; SAIDBROWN 'ASSIGNOR TO SAID HOBSON.

INSULATED HANDLE.

Specification of Letters Patent.

Patented Aug. 29, 1905.

Application filed June 28,1904. Serial No. 214,499.

To aZZ whom it may concern:

Be it known that we, ARTHUR E. HOBSON and J on). G. BROWN, citizens ofthe United States, and residents of Meriden, in the county of New Havenand State of Connecticut, have invented a new and Improved InsulatedHandle, of which the following is a specification.

Our invention relates more especially to the class of devices used forpreventing the transmission of heat from a vessel to the handle thereof;and the object of our invention is to provide a device of this classthat shall prevent the grip of the handle from becoming heated, andespecially one in which the joint between the grip and the tangs towhich it is secured shall be extremely strong and requisite towithstandthe strains to which the vessel shall be subjected in use.

One form of device embodying our invention and illustrating the physicalembodiment thereof is illustrated in the accompanying drawings, inwhich- Figure l is a view in side elevation of a portion of a vessel,having a handle provided with our insulated device. Fig. 2 is aperspective view of the parts containing the insulation. Fig. 3 is aperspective view of said parts, shown as separated. Fig. 4 is a detailview,

on enlarged scale, showing a tang and grip connected by our insulateddevice.

In the accompanying drawings the letter a denotes a vessel, as a teapotor the like, and Z) tangs secured thereto in any suitable manner. Thesetangs may be integral with the pot or may be separate structurespermanently The letter 0 denotes the grip, which forms the handle of thevessel.

Between each end of the grip and the tangs our insulated device isinterposed, and this insulation consists of the following elements: Twometallic plates (Z d, of a metal harder than that of which the'grip andtangs are composed, are constructed to conform to the crosssectionalshape of the handle'to be secured, the plate (Z fitting the tang and theplate (Z fitting the grip. An opening is formed centrally through eachof these plates and centrally of the plates, and about the openings theyare formed into cone-shaped projections c a. It is of importance thatthe metal composing the plates and that composing the grip and tangshall be of different degrees of hardness in order that the material(not shown) used to secure the two parts together shall properly fuse toprovide an extremely-tight joint and one capable of withstanding all thestrains to which the vessel shall be subjected when in use.

A ring f is located between the plates dd, and this ring is composed ofany suitable heatnon-conducting material. A secondary insulation isinterposed between the tangs and grip, and this secondary insulationconsists of pieces 9 g, composed of suitable heat-nonconductingmaterial. These secondary insulations are cone-shaped on opposite sides,the cone on one side being adapted to lit the coneshaped recesses in theplates d CZ. On the opposite sides and on the cone-shaped surface ofthese secondary insulations are plates 7th, shaped to lit thecone-shaped surface of the secondary insulation. extends through all ofthe parts above described, this tie being composed, preferably, of a rodof metal threaded at opposite ends and bearing nutsl; is, fitted uponthe threaded outer ends of the tie and adapted to close the severalpartstogether. The plates h it may also be threaded, if desired, to fitthe threaded end of the tie. It will be noted, as plainly shown in Fig.i of the drawings, that this tie is of such size that there is a freespace entirely around it between its outer surface and the inner surfaceof the openings through the disks (Z cl, so that there is absolutely nometallic connection between the tang Z) and the joined end of the gripc.

It may be noted from the above description that the insulated joint isof particularly strong construction and that there is absolutely nometallic connection between the grip and the tang to which it issecured. The construction of the several parts with cone-shapedprojections and recesses accurately fitting each other tend to draw theparts to the center, which is a desirable form of construction in thatthe parts are self-centering in the operation of tying or securing themtogether, and the secondary insulation provides additional means forpreventing the transmission of heat between the parts.

It is obvious that the details of construction herein described may bedeparted from to a considerable extent without avoiding the invention,and we do not desire to limit our- A threaded tie a" IOO selves to theexact features herein set out, as the cone construction may be departedfrom to a considerable extent without avoiding the invention.

What we claim as our invention, and desire to secure by Letters Patent,is-

1. In an insulated handle including handlesections to be joi ned, platesinterposed between said sections means for securing the plates to thehandle-sections an insulation including a piece of insulated materialinserted between said plates, said plates and insulated piece havingcentrally located interengaging coneshaped recesses and projections, andmeans for securing the parts together.

2. In an insulated handle including handlesections to be joined, aninsulation including metallic plates secured to said sections means forsecuring the plates to said sections, an insulated material securedbetween the plates, a secondary insulation located at the other side ofeach of said plates, and means for securing said parts together.

3. In an insulated handle including handlesections to be joined, aninsulation including metallic plates secured to the joined sectionsmeans for securing the plates to said sections, insulated materialinterposed between the plates, secondary insulations included in thestructure, said insulations and plates being provided withcentrally-located cone-shaped recesses and projections accuratelyfitting each other, and means for joining the parts together.

4:. In an insulated handle including handlesections to be joined, aninsulation including plates secured to the joined sections means forsecuring the plates to said sections, insulated material interposedbetween said plates, insulation-pieces located on the opposite sides ofsaid plates, a tie-rod extending through the insulations but separatedfrom the metallic plates by a space between said rod and plates, andmeans for securing the tie-rod in position.

5. In an insulated handle including handlesections to be joined,metallic plates secured to each of said sections means for securing theplates to said sections, insulating material interposed between themetallic plates, insulating-pieces located on the opposite sides of saidmetallic plates, said plates and insulatingpieces havingcentrally-located interengaging cone-shaped projections and recesses, atie-rod extending through said plates and insulated pieces but entirelydisconnected from said metallic plates, and means for securing said tierod to bind the parts together.

6. In an insulated handle including handlesections to be joined, aninsulation including metallic plates secured to said sections means forsecuring the plates to said sections, an insulated material securedbetween the plates, said plates having centrally-located cone-shapedrecesses, a tie-rod extending through said plates but separatedtherefrom by a space, pieces having cone-shaped projections fitting thecone-shaped recesses in said plates, and means for securing the tie-rod.

7. In an insulated handle including handlesections to be joined, aninsulation including metallic plates to be secured to saidhandlesections means for securing the plates to said sections, secondaryinsulations located on the opposite sides of said plates and separatedfrom the handle-sections by a space extending therearound, said platesand insulations having centrally-located cone-shaped recesses andprojections fitting therein, a tie-rod extending through said plates andinsulations and separated from the metallic plates by a space extendingcompletely around the tierod, and means for securing the tie-rod inposition.

8. In an insulated handle including handlesections to be joined,metallic plates secured to said sections, means for securing the platesto said sections, and an insulation including an insulating-pieceinterposed between said plates with a space between the inner edges ofsaid parts, said plates and insulating-piece having centrally-located,inter-engaging, coneshaped recesses and projections, and means spacedfrom said parts for securing them together.

9. In an insulated handle including handlesections to be joined, platesinterposed between said sections, means for securing the plates to thehandle-sections, and an insulation including an insulating-piece locatedbetween the plates, secondary insulation located on the other side ofeach of the plates, means for securing said parts together, saidinsulation having spaces between the parts, and centrally-located,interengaging, cone-shaped recesses and projections on the parts.

ARTHUR E. HOBSON. JOI-IN'G. BROWN.

Witnesses:

J L. DALGLEISH, SUSIE JAoKsoN.

